1800 623 312
Australia
Overview
Residential Solutions
Since 1989, Mainmark has been helping homeowners restore stability and protect their biggest asset.
We raise, re-level, and re-support houses and residential structures that have experienced ground movement or settlement, delivering fast, effective results with minimal disruption.
Our proven ground improvement and level correction solutions are designed to address foundation subsidence, helping to close cracks in walls, re-level sinking floors, and restore correct levels in homes of any size. We also provide precise slab lifting for sunken driveways, garage floors, patios and other concrete areas.
From minor settlement to significant structural movement, Mainmark delivers safe, long-term solutions that keep homes standing strong.
Residential House Re-levelling Videos
Watch Our Re-levelling Solutions In Action
Residential Subsidence Repair
Before & After Treatment
Houses that need to be re-levelled often develop cracks in walls, sinking floors, sticking windows or jammed doors.
Our innovative solutions are designed to address sinking foundations and cracked walls, ensuring long-lasting stability for your home. Whether it’s a sinking foundation or a cracked wall repair, sinking concrete floor or re-levelling a driveway, we provide tailored services to every job.
We offer a range of underpinning options, including resin injection underpinning and concrete underpinning, to help raise and relevel sunken structures. The cost of underpinning varies depending on factors like the extent of damage and the type of foundation. Our expert team specialises in underpinning footings and crack wall repair, ensuring your home is safe and secure for the future.
*Results may vary depending on site conditions, ground behaviour and specific requirements of each project.
Mainmark Google Reviews
How we get your home back to level in as little as a day.
Mainmark’s industry
leading solutions
Re-levelling
Mainmark specialises in re-levelling buildings that have experienced subsidence, settlement, or other structural issues leading to uneven floors and foundation cracks.
Ground Improvement
Mainmark specialises in advanced ground improvement methods, delivering a suite of technologies that cover densification, solidification, and soil replacement methods.
Void Filling
Mainmark offers comprehensive void filling solutions for diverse market sectors, using specialised chemical or cementitious grouts.
Projects
Featured
Residential Projects
Mainmark’s specialised
solutions
Ground Improvement
Ground improvement modifies a soil’s properties, improving its load bearing capacity or resilience against liquefaction.
Re-levelling
We re-level buildings that have experienced subsidence, settlement, or other structural issues leading to uneven floors and foundation cracks.
Residential Resources
Homeowners’ Guide to Teretek® Resin Injection
Print At Home Crack Gauge
Download file
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Arrange a site assessment in 3 simple steps:
Step 1
Submit your enquiry using our online form. Include a brief message about the type of foundation issues you are experiencing.
Step 2
Our friendly customer service team will be in touch to schedule a site assessment that suits you.
Step 3
One of the Mainmark experts will visit your home or property, assess the damage, and ascertain the likely cause. They will establish the approach needed, creating a plan specific to the needs of your building and provide you with a detailed quote.
© 2026 The Mainmark group of companies. ‘Mainmark®’, ‘Terefil®’, ‘Terefirm®’ and ‘Teretek®’ are trademarks of the Mainmark group of companies.
Mainmark Ground Engineering Pty Ltd
ABN: 51 606 182 503
